/* Target-vector operations for controlling windows child processes, for GDB.
- Copyright (C) 1995-2019 Free Software Foundation, Inc.
+ Copyright (C) 1995-2022 Free Software Foundation, Inc.
Contributed by Cygnus Solutions, A Red Hat Company.
#include <fcntl.h>
#include <windows.h>
#include <imagehlp.h>
-#include <psapi.h>
#ifdef __CYGWIN__
#include <wchar.h>
#include <sys/cygwin.h>
#include <cygwin/version.h>
#endif
#include <algorithm>
+#include <vector>
-#include "buildsym-legacy.h"
#include "filenames.h"
#include "symfile.h"
#include "objfiles.h"
#include "gdb_bfd.h"
-#include "gdb_obstack.h"
+#include "gdbsupport/gdb_obstack.h"
#include "gdbthread.h"
#include "gdbcmd.h"
#include <unistd.h>
#include "x86-nat.h"
#include "complaints.h"
#include "inf-child.h"
-#include "common/gdb_tilde_expand.h"
-#include "common/pathstuff.h"
+#include "gdbsupport/gdb_tilde_expand.h"
+#include "gdbsupport/pathstuff.h"
+#include "gdbsupport/gdb_wait.h"
+#include "nat/windows-nat.h"
+#include "gdbsupport/symbol.h"
-#define AdjustTokenPrivileges dyn_AdjustTokenPrivileges
-#define DebugActiveProcessStop dyn_DebugActiveProcessStop
-#define DebugBreakProcess dyn_DebugBreakProcess
-#define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit
-#define EnumProcessModules dyn_EnumProcessModules
-#define GetModuleInformation dyn_GetModuleInformation
-#define LookupPrivilegeValueA dyn_LookupPrivilegeValueA
-#define OpenProcessToken dyn_OpenProcessToken
-#define GetConsoleFontSize dyn_GetConsoleFontSize
-#define GetCurrentConsoleFont dyn_GetCurrentConsoleFont
+using namespace windows_nat;
-typedef BOOL WINAPI (AdjustTokenPrivileges_ftype) (HANDLE, BOOL,
- PTOKEN_PRIVILEGES,
- DWORD, PTOKEN_PRIVILEGES,
- PDWORD);
-static AdjustTokenPrivileges_ftype *AdjustTokenPrivileges;
-
-typedef BOOL WINAPI (DebugActiveProcessStop_ftype) (DWORD);
-static DebugActiveProcessStop_ftype *DebugActiveProcessStop;
-
-typedef BOOL WINAPI (DebugBreakProcess_ftype) (HANDLE);
-static DebugBreakProcess_ftype *DebugBreakProcess;
-
-typedef BOOL WINAPI (DebugSetProcessKillOnExit_ftype) (BOOL);
-static DebugSetProcessKillOnExit_ftype *DebugSetProcessKillOnExit;
-
-typedef BOOL WINAPI (EnumProcessModules_ftype) (HANDLE, HMODULE *, DWORD,
- LPDWORD);
-static EnumProcessModules_ftype *EnumProcessModules;
-
-typedef BOOL WINAPI (GetModuleInformation_ftype) (HANDLE, HMODULE,
- LPMODULEINFO, DWORD);
-static GetModuleInformation_ftype *GetModuleInformation;
-
-typedef BOOL WINAPI (LookupPrivilegeValueA_ftype) (LPCSTR, LPCSTR, PLUID);
-static LookupPrivilegeValueA_ftype *LookupPrivilegeValueA;
-
-typedef BOOL WINAPI (OpenProcessToken_ftype) (HANDLE, DWORD, PHANDLE);
-static OpenProcessToken_ftype *OpenProcessToken;
-
-typedef BOOL WINAPI (GetCurrentConsoleFont_ftype) (HANDLE, BOOL,
- CONSOLE_FONT_INFO *);
-static GetCurrentConsoleFont_ftype *GetCurrentConsoleFont;
-
-typedef COORD WINAPI (GetConsoleFontSize_ftype) (HANDLE, DWORD);
-static GetConsoleFontSize_ftype *GetConsoleFontSize;
+/* The current process. */
+static windows_process_info windows_process;
#undef STARTUPINFO
#undef CreateProcess
#ifndef __CYGWIN__
# define __PMAX (MAX_PATH + 1)
- typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE, LPSTR, DWORD);
- static GetModuleFileNameEx_ftype *GetModuleFileNameEx;
+# define GetModuleFileNameEx GetModuleFileNameExA
# define STARTUPINFO STARTUPINFOA
# define CreateProcess CreateProcessA
-# define GetModuleFileNameEx_name "GetModuleFileNameExA"
-# define bad_GetModuleFileNameEx bad_GetModuleFileNameExA
#else
# define __PMAX PATH_MAX
/* The starting and ending address of the cygwin1.dll text segment. */
static CORE_ADDR cygwin_load_end;
# define __USEWIDE
typedef wchar_t cygwin_buf_t;
- typedef DWORD WINAPI (GetModuleFileNameEx_ftype) (HANDLE, HMODULE,
- LPWSTR, DWORD);
- static GetModuleFileNameEx_ftype *GetModuleFileNameEx;
+# define GetModuleFileNameEx GetModuleFileNameExW
# define STARTUPINFO STARTUPINFOW
# define CreateProcess CreateProcessW
-# define GetModuleFileNameEx_name "GetModuleFileNameExW"
-# define bad_GetModuleFileNameEx bad_GetModuleFileNameExW
#endif
static int have_saved_context; /* True if we've saved context from a
cygwin signal. */
#ifdef __CYGWIN__
-static CONTEXT saved_context; /* Containes the saved context from a
+static CONTEXT saved_context; /* Contains the saved context from a
cygwin signal. */
#endif
#endif
#define CONTEXT_DEBUGGER_DR CONTEXT_FULL | CONTEXT_FLOATING_POINT \
- | CONTEXT_SEGMENTS | CONTEXT_DEBUG_REGISTERS \
- | CONTEXT_EXTENDED_REGISTERS
+ | CONTEXT_SEGMENTS | CONTEXT_DEBUG_REGISTERS \
+ | CONTEXT_EXTENDED_REGISTERS
static uintptr_t dr[8];
-static int debug_registers_changed;
-static int debug_registers_used;
static int windows_initialization_done;
#define DR6_CLEAR_VALUE 0xffff0ff0
-/* The exception thrown by a program to tell the debugger the name of
- a thread. The exception record contains an ID of a thread and a
- name to give it. This exception has no documented name, but MSDN
- dubs it "MS_VC_EXCEPTION" in one code example. */
-#define MS_VC_EXCEPTION 0x406d1388
-
-typedef enum
-{
- HANDLE_EXCEPTION_UNHANDLED = 0,
- HANDLE_EXCEPTION_HANDLED,
- HANDLE_EXCEPTION_IGNORED
-} handle_exception_result;
-
/* The string sent by cygwin when it processes a signal.
FIXME: This should be in a cygwin include file. */
#ifndef _CYGWIN_SIGNAL_STRING
#endif
#define CHECK(x) check (x, __FILE__,__LINE__)
-#define DEBUG_EXEC(x) if (debug_exec) printf_unfiltered x
-#define DEBUG_EVENTS(x) if (debug_events) printf_unfiltered x
-#define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x
-#define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x
+#define DEBUG_EXEC(fmt, ...) \
+ debug_prefixed_printf_cond (debug_exec, "windows exec", fmt, ## __VA_ARGS__)
+#define DEBUG_EVENTS(fmt, ...) \
+ debug_prefixed_printf_cond (debug_events, "windows events", fmt, \
+ ## __VA_ARGS__)
+#define DEBUG_MEM(fmt, ...) \
+ debug_prefixed_printf_cond (debug_memory, "windows mem", fmt, \
+ ## __VA_ARGS__)
+#define DEBUG_EXCEPT(fmt, ...) \
+ debug_prefixed_printf_cond (debug_exceptions, "windows except", fmt, \
+ ## __VA_ARGS__)
static void cygwin_set_dr (int i, CORE_ADDR addr);
static void cygwin_set_dr7 (unsigned long val);
static unsigned long cygwin_get_dr6 (void);
static unsigned long cygwin_get_dr7 (void);
-static enum gdb_signal last_sig = GDB_SIGNAL_0;
-/* Set if a signal was received from the debugged process. */
-
-/* Thread information structure used to track information that is
- not available in gdb's thread structure. */
-typedef struct windows_thread_info_struct
- {
- struct windows_thread_info_struct *next;
- DWORD id;
- HANDLE h;
- CORE_ADDR thread_local_base;
- char *name;
- int suspended;
- int reload_context;
- CONTEXT context;
- STACKFRAME sf;
- }
-windows_thread_info;
-
-static windows_thread_info thread_head;
-
-/* The process and thread handles for the above context. */
-
-static DEBUG_EVENT current_event; /* The current debug event from
- WaitForDebugEvent */
-static HANDLE current_process_handle; /* Currently executing process */
-static windows_thread_info *current_thread; /* Info on currently selected thread */
-static DWORD main_thread_id; /* Thread ID of the main thread */
+static std::vector<std::unique_ptr<windows_thread_info>> thread_list;
/* Counts of things. */
-static int exception_count = 0;
-static int event_count = 0;
static int saw_create;
static int open_process_used = 0;
+#ifdef __x86_64__
+static void *wow64_dbgbreak;
+#endif
/* User options. */
-static int new_console = 0;
+static bool new_console = false;
#ifdef __CYGWIN__
-static int cygwin_exceptions = 0;
+static bool cygwin_exceptions = false;
#endif
-static int new_group = 1;
-static int debug_exec = 0; /* show execution */
-static int debug_events = 0; /* show events from kernel */
-static int debug_memory = 0; /* show target memory accesses */
-static int debug_exceptions = 0; /* show target exceptions */
-static int useshell = 0; /* use shell for subprocesses */
+static bool new_group = true;
+static bool debug_exec = false; /* show execution */
+static bool debug_events = false; /* show events from kernel */
+static bool debug_memory = false; /* show target memory accesses */
+static bool debug_exceptions = false; /* show target exceptions */
+static bool useshell = false; /* use shell for subprocesses */
/* This vector maps GDB's idea of a register's number into an offset
in the windows exception context vector.
void resume (ptid_t, int , enum gdb_signal) override;
- ptid_t wait (ptid_t, struct target_waitstatus *, int) override;
+ ptid_t wait (ptid_t, struct target_waitstatus *, target_wait_flags) override;
void fetch_registers (struct regcache *, int) override;
void store_registers (struct regcache *, int) override;
+ bool stopped_by_sw_breakpoint () override
+ {
+ windows_thread_info *th
+ = windows_process.thread_rec (inferior_ptid, DONT_INVALIDATE_CONTEXT);
+ return th->stopped_at_software_breakpoint;
+ }
+
+ bool supports_stopped_by_sw_breakpoint () override
+ {
+ return true;
+ }
+
enum target_xfer_status xfer_partial (enum target_object object,
const char *annex,
gdb_byte *readbuf,
char *pid_to_exec_file (int pid) override;
- ptid_t get_ada_task_ptid (long lwp, long thread) override;
+ ptid_t get_ada_task_ptid (long lwp, ULONGEST thread) override;
bool get_tib_address (ptid_t ptid, CORE_ADDR *addr) override;
const char *thread_name (struct thread_info *) override;
+
+ int get_windows_debug_event (int pid, struct target_waitstatus *ourstatus);
+
+ void do_initial_windows_stuff (DWORD pid, bool attaching);
};
static windows_nat_target the_windows_nat_target;
/* Set the MAPPINGS static global to OFFSETS.
See the description of MAPPINGS for more details. */
-void
+static void
windows_set_context_register_offsets (const int *offsets)
{
mappings = offsets;
}
-/* See windows-nat.h. */
+/* Set the function that should be used by this module to determine
+ whether a given register is a segment register or not. */
-void
+static void
windows_set_segment_register_p (segment_register_p_ftype *fun)
{
segment_register_p = fun;
check (BOOL ok, const char *file, int line)
{
if (!ok)
- printf_filtered ("error return %s:%d was %u\n", file, line,
- (unsigned) GetLastError ());
+ gdb_printf ("error return %s:%d was %u\n", file, line,
+ (unsigned) GetLastError ());
}
-/* Find a thread record given a thread id. If GET_CONTEXT is not 0,
- then also retrieve the context for this thread. If GET_CONTEXT is
- negative, then don't suspend the thread. */
-static windows_thread_info *
-thread_rec (DWORD id, int get_context)
-{
- windows_thread_info *th;
+/* See nat/windows-nat.h. */
- for (th = &thread_head; (th = th->next) != NULL;)
- if (th->id == id)
+windows_thread_info *
+windows_nat::windows_process_info::thread_rec
+ (ptid_t ptid, thread_disposition_type disposition)
+{
+ for (auto &th : thread_list)
+ if (th->tid == ptid.lwp ())
{
- if (!th->suspended && get_context)
+ if (!th->suspended)
{
- if (get_context > 0 && id != current_event.dwThreadId)
+ switch (disposition)
{
- if (SuspendThread (th->h) == (DWORD) -1)
- {
- DWORD err = GetLastError ();
-
- /* We get Access Denied (5) when trying to suspend
- threads that Windows started on behalf of the
- debuggee, usually when those threads are just
- about to exit.
- We can get Invalid Handle (6) if the main thread
- has exited. */
- if (err != ERROR_INVALID_HANDLE
- && err != ERROR_ACCESS_DENIED)
- warning (_("SuspendThread (tid=0x%x) failed."
- " (winerr %u)"),
- (unsigned) id, (unsigned) err);
- th->suspended = -1;
- }
- else
- th->suspended = 1;
+ case DONT_INVALIDATE_CONTEXT:
+ /* Nothing. */
+ break;
+ case INVALIDATE_CONTEXT:
+ if (ptid.lwp () != current_event.dwThreadId)
+ th->suspend ();
+ th->reload_context = true;
+ break;
+ case DONT_SUSPEND:
+ th->reload_context = true;
+ th->suspended = -1;
+ break;
}
- else if (get_context < 0)
- th->suspended = -1;
- th->reload_context = 1;
}
- return th;
+ return th.get ();
}
return NULL;
windows_add_thread (ptid_t ptid, HANDLE h, void *tlb, bool main_thread_p)
{
windows_thread_info *th;
- DWORD id;
-
- gdb_assert (ptid.tid () != 0);
- id = ptid.tid ();
+ gdb_assert (ptid.lwp () != 0);
- if ((th = thread_rec (id, FALSE)))
+ if ((th = windows_process.thread_rec (ptid, DONT_INVALIDATE_CONTEXT)))
return th;
- th = XCNEW (windows_thread_info);
- th->id = id;
- th->h = h;
- th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb;
- th->next = thread_head.next;
- thread_head.next = th;
+ CORE_ADDR base = (CORE_ADDR) (uintptr_t) tlb;
+#ifdef __x86_64__
+ /* For WOW64 processes, this is actually the pointer to the 64bit TIB,
+ and the 32bit TIB is exactly 2 pages after it. */
+ if (windows_process.wow64_process)
+ base += 0x2000;
+#endif
+ th = new windows_thread_info (ptid.lwp (), h, base);
+ thread_list.emplace_back (th);
/* Add this new thread to the list of threads.
the main thread silently (in reality, this thread is really
more of a process to the user than a thread). */
if (main_thread_p)
- add_thread_silent (ptid);
+ add_thread_silent (&the_windows_nat_target, ptid);
else
- add_thread (ptid);
-
- /* Set the debug registers for the new thread if they are used. */
- if (debug_registers_used)
- {
- /* Only change the value of the debug registers. */
- th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS;
- CHECK (GetThreadContext (th->h, &th->context));
- th->context.Dr0 = dr[0];
- th->context.Dr1 = dr[1];
- th->context.Dr2 = dr[2];
- th->context.Dr3 = dr[3];
- th->context.Dr6 = DR6_CLEAR_VALUE;
- th->context.Dr7 = dr[7];
- CHECK (SetThreadContext (th->h, &th->context));
- th->context.ContextFlags = 0;
- }
+ add_thread (&the_windows_nat_target, ptid);
+
+ /* It's simplest to always set this and update the debug
+ registers. */
+ th->debug_registers_changed = true;
+
return th;
}
static void
windows_init_thread_list (void)
{
- windows_thread_info *th = &thread_head;
-
- DEBUG_EVENTS (("gdb: windows_init_thread_list\n"));
- init_thread_list ();
- while (th->next != NULL)
- {
- windows_thread_info *here = th->next;
- th->next = here->next;
- xfree (here);
- }
- thread_head.next = NULL;
+ DEBUG_EVENTS ("called");
+ thread_list.clear ();
}
/* Delete a thread from the list of threads.
static void
windows_delete_thread (ptid_t ptid, DWORD exit_code, bool main_thread_p)
{
- windows_thread_info *th;
DWORD id;
- gdb_assert (ptid.tid () != 0);
+ gdb_assert (ptid.lwp () != 0);
- id = ptid.tid ();
+ id = ptid.lwp ();
/* Emit a notification about the thread being deleted.
Note that no notification was printed when the main thread
was created, and thus, unless in verbose mode, we should be
- symetrical, and avoid that notification for the main thread
+ symmetrical, and avoid that notification for the main thread
here as well. */
if (info_verbose)
- printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid).c_str ());
+ gdb_printf ("[Deleting %s]\n", target_pid_to_str (ptid).c_str ());
else if (print_thread_events && !main_thread_p)
- printf_unfiltered (_("[%s exited with code %u]\n"),
- target_pid_to_str (ptid).c_str (),
- (unsigned) exit_code);
+ gdb_printf (_("[%s exited with code %u]\n"),
+ target_pid_to_str (ptid).c_str (),
+ (unsigned) exit_code);
- delete_thread (find_thread_ptid (ptid));
+ delete_thread (find_thread_ptid (&the_windows_nat_target, ptid));
- for (th = &thread_head;
- th->next != NULL && th->next->id != id;
- th = th->next)
- continue;
+ auto iter = std::find_if (thread_list.begin (), thread_list.end (),
+ [=] (auto &th)
+ {
+ return th->tid == id;
+ });
- if (th->next != NULL)
- {
- windows_thread_info *here = th->next;
- th->next = here->next;
- xfree (here->name);
- xfree (here);
- }
+ if (iter != thread_list.end ())
+ thread_list.erase (iter);
}
/* Fetches register number R from the given windows_thread_info,
gdb_assert (r >= 0);
gdb_assert (!th->reload_context);
- char *context_offset = ((char *) &th->context) + mappings[r];
+ char *context_ptr = (char *) &th->context;
+#ifdef __x86_64__
+ if (windows_process.wow64_process)
+ context_ptr = (char *) &th->wow64_context;
+#endif
+
+ char *context_offset = context_ptr + mappings[r];
struct gdbarch *gdbarch = regcache->arch ();
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ i386_gdbarch_tdep *tdep = (i386_gdbarch_tdep *) gdbarch_tdep (gdbarch);
+
+ gdb_assert (!gdbarch_read_pc_p (gdbarch));
+ gdb_assert (gdbarch_pc_regnum (gdbarch) >= 0);
+ gdb_assert (!gdbarch_write_pc_p (gdbarch));
if (r == I387_FISEG_REGNUM (tdep))
{
regcache->raw_supply (r, (char *) &l);
}
else
- regcache->raw_supply (r, context_offset);
+ {
+ if (th->stopped_at_software_breakpoint
+ && !th->pc_adjusted
+ && r == gdbarch_pc_regnum (gdbarch))
+ {
+ int size = register_size (gdbarch, r);
+ if (size == 4)
+ {
+ uint32_t value;
+ memcpy (&value, context_offset, size);
+ value -= gdbarch_decr_pc_after_break (gdbarch);
+ memcpy (context_offset, &value, size);
+ }
+ else
+ {
+ gdb_assert (size == 8);
+ uint64_t value;
+ memcpy (&value, context_offset, size);
+ value -= gdbarch_decr_pc_after_break (gdbarch);
+ memcpy (context_offset, &value, size);
+ }
+ /* Make sure we only rewrite the PC a single time. */
+ th->pc_adjusted = true;
+ }
+ regcache->raw_supply (r, context_offset);
+ }
}
void
windows_nat_target::fetch_registers (struct regcache *regcache, int r)
{
- DWORD pid = regcache->ptid ().tid ();
- windows_thread_info *th = thread_rec (pid, TRUE);
+ windows_thread_info *th
+ = windows_process.thread_rec (regcache->ptid (), INVALIDATE_CONTEXT);
/* Check if TH exists. Windows sometimes uses a non-existent
thread id in its events. */
have_saved_context = 0;
}
else
+#endif
+#ifdef __x86_64__
+ if (windows_process.wow64_process)
+ {
+ th->wow64_context.ContextFlags = CONTEXT_DEBUGGER_DR;
+ CHECK (Wow64GetThreadContext (th->h, &th->wow64_context));
+ /* Copy dr values from that thread.
+ But only if there were not modified since last stop.
+ PR gdb/2388 */
+ if (!th->debug_registers_changed)
+ {
+ dr[0] = th->wow64_context.Dr0;
+ dr[1] = th->wow64_context.Dr1;
+ dr[2] = th->wow64_context.Dr2;
+ dr[3] = th->wow64_context.Dr3;
+ dr[6] = th->wow64_context.Dr6;
+ dr[7] = th->wow64_context.Dr7;
+ }
+ }
+ else
#endif
{
th->context.ContextFlags = CONTEXT_DEBUGGER_DR;
/* Copy dr values from that thread.
But only if there were not modified since last stop.
PR gdb/2388 */
- if (!debug_registers_changed)
+ if (!th->debug_registers_changed)
{
dr[0] = th->context.Dr0;
dr[1] = th->context.Dr1;
dr[7] = th->context.Dr7;
}
}
- th->reload_context = 0;
+ th->reload_context = false;
}
if (r < 0)
{
gdb_assert (r >= 0);
- regcache->raw_collect (r, ((char *) &th->context) + mappings[r]);
+ char *context_ptr = (char *) &th->context;
+#ifdef __x86_64__
+ if (windows_process.wow64_process)
+ context_ptr = (char *) &th->wow64_context;
+#endif
+
+ regcache->raw_collect (r, context_ptr + mappings[r]);
}
/* Store a new register value into the context of the thread tied to
void
windows_nat_target::store_registers (struct regcache *regcache, int r)
{
- DWORD pid = regcache->ptid ().tid ();
- windows_thread_info *th = thread_rec (pid, TRUE);
+ windows_thread_info *th
+ = windows_process.thread_rec (regcache->ptid (), INVALIDATE_CONTEXT);
/* Check if TH exists. Windows sometimes uses a non-existent
thread id in its events. */
windows_store_one_register (regcache, th, r);
}
-/* Encapsulate the information required in a call to
- symbol_file_add_args. */
-struct safe_symbol_file_add_args
-{
- char *name;
- int from_tty;
- section_addr_info *addrs;
- int mainline;
- int flags;
- struct ui_file *err, *out;
- struct objfile *ret;
-};
-
/* Maintain a linked list of "so" information. */
-struct lm_info_windows : public lm_info_base
+struct windows_solib
{
LPVOID load_addr = 0;
+ CORE_ADDR text_offset = 0;
+
+ /* Original name. */
+ std::string original_name;
+ /* Expanded form of the name. */
+ std::string name;
};
-static struct so_list solib_start, *solib_end;
+static std::vector<windows_solib> solibs;
-static struct so_list *
+/* See nat/windows-nat.h. */
+
+static windows_solib *
windows_make_so (const char *name, LPVOID load_addr)
{
- struct so_list *so;
char *p;
#ifndef __CYGWIN__
char buf[__PMAX];
#endif
}
#endif
- so = XCNEW (struct so_list);
- lm_info_windows *li = new lm_info_windows;
- so->lm_info = li;
- li->load_addr = load_addr;
- strcpy (so->so_original_name, name);
+ solibs.emplace_back ();
+ windows_solib *so = &solibs.back ();
+ so->load_addr = load_addr;
+ so->original_name = name;
#ifndef __CYGWIN__
- strcpy (so->so_name, buf);
+ so->name = buf;
#else
if (buf[0])
- cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name,
- SO_NAME_MAX_PATH_SIZE);
+ {
+ char name[SO_NAME_MAX_PATH_SIZE];
+ cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, name,
+ SO_NAME_MAX_PATH_SIZE);
+ so->name = name;
+ }
else
{
char *rname = realpath (name, NULL);
if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE)
{
- strcpy (so->so_name, rname);
+ so->name = rname;
free (rname);
}
else
- error (_("dll path too long"));
+ {
+ warning (_("dll path for \"%s\" too long or inaccessible"), name);
+ so->name = so->original_name;
+ }
}
/* Record cygwin1.dll .text start/end. */
- p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1);
- if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0)
+ size_t len = sizeof ("/cygwin1.dll") - 1;
+ if (so->name.size () >= len
+ && strcasecmp (so->name.c_str () + so->name.size () - len,
+ "/cygwin1.dll") == 0)
{
asection *text = NULL;
- gdb_bfd_ref_ptr abfd (gdb_bfd_open (so->so_name, "pei-i386", -1));
+ gdb_bfd_ref_ptr abfd (gdb_bfd_open (so->name, "pei-i386"));
if (abfd == NULL)
return so;
file header and the section alignment. */
cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *)
load_addr + 0x1000);
- cygwin_load_end = cygwin_load_start + bfd_section_size (abfd.get (),
- text);
+ cygwin_load_end = cygwin_load_start + bfd_section_size (text);
}
#endif
return so;
}
-static char *
-get_image_name (HANDLE h, void *address, int unicode)
-{
-#ifdef __CYGWIN__
- static char buf[__PMAX];
-#else
- static char buf[(2 * __PMAX) + 1];
-#endif
- DWORD size = unicode ? sizeof (WCHAR) : sizeof (char);
- char *address_ptr;
- int len = 0;
- char b[2];
- SIZE_T done;
-
- /* Attempt to read the name of the dll that was detected.
- This is documented to work only when actively debugging
- a program. It will not work for attached processes. */
- if (address == NULL)
- return NULL;
-
- /* See if we could read the address of a string, and that the
- address isn't null. */
- if (!ReadProcessMemory (h, address, &address_ptr,
- sizeof (address_ptr), &done)
- || done != sizeof (address_ptr) || !address_ptr)
- return NULL;
-
- /* Find the length of the string. */
- while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done)
- && (b[0] != 0 || b[size - 1] != 0) && done == size)
- continue;
-
- if (!unicode)
- ReadProcessMemory (h, address_ptr, buf, len, &done);
- else
- {
- WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR));
- ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR),
- &done);
-#ifdef __CYGWIN__
- wcstombs (buf, unicode_address, __PMAX);
-#else
- WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, sizeof buf,
- 0, 0);
-#endif
- }
-
- return buf;
-}
-
-/* Handle a DLL load event, and return 1.
-
- This function assumes that this event did not occur during inferior
- initialization, where their event info may be incomplete (see
- do_initial_windows_stuff and windows_add_all_dlls for more info
- on how we handle DLL loading during that phase). */
-
-static void
-handle_load_dll ()
-{
- LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll;
- char *dll_name;
-
- /* Try getting the DLL name via the lpImageName field of the event.
- Note that Microsoft documents this fields as strictly optional,
- in the sense that it might be NULL. And the first DLL event in
- particular is explicitly documented as "likely not pass[ed]"
- (source: MSDN LOAD_DLL_DEBUG_INFO structure). */
- dll_name = get_image_name (current_process_handle,
- event->lpImageName, event->fUnicode);
- if (!dll_name)
- return;
-
- solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll);
- solib_end = solib_end->next;
-
- lm_info_windows *li = (lm_info_windows *) solib_end->lm_info;
-
- DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name,
- host_address_to_string (li->load_addr)));
-}
+/* See nat/windows-nat.h. */
-static void
-windows_free_so (struct so_list *so)
+void
+windows_nat::windows_process_info::handle_load_dll (const char *dll_name,
+ LPVOID base)
{
- lm_info_windows *li = (lm_info_windows *) so->lm_info;
-
- delete li;
- xfree (so);
+ windows_solib *solib = windows_make_so (dll_name, base);
+ DEBUG_EVENTS ("Loading dll \"%s\" at %s.", solib->name.c_str (),
+ host_address_to_string (solib->load_addr));
}
-/* Handle a DLL unload event.
- Return 1 if successful, or zero otherwise.
+/* See nat/windows-nat.h. */
- This function assumes that this event did not occur during inferior
- initialization, where their event info may be incomplete (see
- do_initial_windows_stuff and windows_add_all_dlls for more info
- on how we handle DLL loading during that phase). */
-
-static void
-handle_unload_dll ()
+void
+windows_nat::windows_process_info::handle_unload_dll ()
{
LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll;
- struct so_list *so;
- for (so = &solib_start; so->next != NULL; so = so->next)
+ auto iter = std::remove_if (solibs.begin (), solibs.end (),
+ [&] (windows_solib &lib)
{
- lm_info_windows *li_next = (lm_info_windows *) so->next->lm_info;
-
- if (li_next->load_addr == lpBaseOfDll)
+ if (lib.load_addr == lpBaseOfDll)
{
- struct so_list *sodel = so->next;
-
- so->next = sodel->next;
- if (!so->next)
- solib_end = so;
- DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name));
-
- windows_free_so (sodel);
- return;
+ DEBUG_EVENTS ("Unloading dll \"%s\".", lib.name.c_str ());
+ return true;
}
+ return false;
+ });
+
+ if (iter != solibs.end ())
+ {
+ solibs.erase (iter, solibs.end ());
+ return;
}
/* We did not find any DLL that was previously loaded at this address,
host_address_to_string (lpBaseOfDll));
}
-/* Call FUNC wrapped in a TRY/CATCH that swallows all GDB
- exceptions. */
-
-static void
-catch_errors (void (*func) ())
-{
- try
- {
- func ();
- }
- catch (const gdb_exception &ex)
- {
- exception_print (gdb_stderr, ex);
- }
-}
-
/* Clear list of loaded DLLs. */
static void
windows_clear_solib (void)
{
- solib_start.next = NULL;
- solib_end = &solib_start;
+ solibs.clear ();
}
static void
CloseHandle ((HANDLE) event_id);
}
-/* Handle DEBUG_STRING output from child process.
- Cygwin prepends its messages with a "cygwin:". Interpret this as
- a Cygwin signal. Otherwise just print the string as a warning. */
-static int
-handle_output_debug_string (struct target_waitstatus *ourstatus)
+/* See nat/windows-nat.h. */
+
+int
+windows_nat::windows_process_info::handle_output_debug_string
+ (struct target_waitstatus *ourstatus)
{
- gdb::unique_xmalloc_ptr<char> s;
int retval = 0;
- if (!target_read_string
- ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData,
- &s, 1024, 0)
- || !s || !*(s.get ()))
+ gdb::unique_xmalloc_ptr<char> s
+ = (target_read_string
+ ((CORE_ADDR) (uintptr_t) current_event.u.DebugString.lpDebugStringData,
+ 1024));
+ if (s == nullptr || !*(s.get ()))
/* nothing to do */;
else if (!startswith (s.get (), _CYGWIN_SIGNAL_STRING))
{
int sig = strtol (s.get () + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0);
gdb_signal gotasig = gdb_signal_from_host (sig);
- ourstatus->value.sig = gotasig;
if (gotasig)
{
LPCVOID x;
SIZE_T n;
- ourstatus->kind = TARGET_WAITKIND_STOPPED;
+ ourstatus->set_stopped (gotasig);
retval = strtoul (p, &p, 0);
if (!retval)
- retval = main_thread_id;
+ retval = current_event.dwThreadId;
else if ((x = (LPCVOID) (uintptr_t) strtoull (p, NULL, 0))
&& ReadProcessMemory (current_process_handle, x,
&saved_context,
display_selector (HANDLE thread, DWORD sel)
{
LDT_ENTRY info;
- if (GetThreadSelectorEntry (thread, sel, &info))
+ BOOL ret;
+#ifdef __x86_64__
+ if (windows_process.wow64_process)
+ ret = Wow64GetThreadSelectorEntry (thread, sel, &info);
+ else
+#endif
+ ret = GetThreadSelectorEntry (thread, sel, &info);
+ if (ret)
{
int base, limit;
- printf_filtered ("0x%03x: ", (unsigned) sel);
+ gdb_printf ("0x%03x: ", (unsigned) sel);
if (!info.HighWord.Bits.Pres)
{
- puts_filtered ("Segment not present\n");
+ gdb_puts ("Segment not present\n");
return 0;
}
base = (info.HighWord.Bits.BaseHi << 24) +
limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow;
if (info.HighWord.Bits.Granularity)
limit = (limit << 12) | 0xfff;
- printf_filtered ("base=0x%08x limit=0x%08x", base, limit);
+ gdb_printf ("base=0x%08x limit=0x%08x", base, limit);
if (info.HighWord.Bits.Default_Big)
- puts_filtered(" 32-bit ");
+ gdb_puts(" 32-bit ");
else
- puts_filtered(" 16-bit ");
+ gdb_puts(" 16-bit ");
switch ((info.HighWord.Bits.Type & 0xf) >> 1)
{
case 0:
- puts_filtered ("Data (Read-Only, Exp-up");
+ gdb_puts ("Data (Read-Only, Exp-up");
break;
case 1:
- puts_filtered ("Data (Read/Write, Exp-up");
+ gdb_puts ("Data (Read/Write, Exp-up");
break;
case 2:
- puts_filtered ("Unused segment (");
+ gdb_puts ("Unused segment (");
break;
case 3:
- puts_filtered ("Data (Read/Write, Exp-down");
+ gdb_puts ("Data (Read/Write, Exp-down");
break;
case 4:
- puts_filtered ("Code (Exec-Only, N.Conf");
+ gdb_puts ("Code (Exec-Only, N.Conf");
break;
case 5:
- puts_filtered ("Code (Exec/Read, N.Conf");
+ gdb_puts ("Code (Exec/Read, N.Conf");
break;
case 6:
- puts_filtered ("Code (Exec-Only, Conf");
+ gdb_puts ("Code (Exec-Only, Conf");
break;
case 7:
- puts_filtered ("Code (Exec/Read, Conf");
+ gdb_puts ("Code (Exec/Read, Conf");
break;
default:
- printf_filtered ("Unknown type 0x%lx",
- (unsigned long) info.HighWord.Bits.Type);
+ gdb_printf ("Unknown type 0x%lx",
+ (unsigned long) info.HighWord.Bits.Type);
}
if ((info.HighWord.Bits.Type & 0x1) == 0)
- puts_filtered(", N.Acc");
- puts_filtered (")\n");
+ gdb_puts(", N.Acc");
+ gdb_puts (")\n");
if ((info.HighWord.Bits.Type & 0x10) == 0)
- puts_filtered("System selector ");
- printf_filtered ("Priviledge level = %ld. ",
- (unsigned long) info.HighWord.Bits.Dpl);
+ gdb_puts("System selector ");
+ gdb_printf ("Priviledge level = %ld. ",
+ (unsigned long) info.HighWord.Bits.Dpl);
if (info.HighWord.Bits.Granularity)
- puts_filtered ("Page granular.\n");
+ gdb_puts ("Page granular.\n");
else
- puts_filtered ("Byte granular.\n");
+ gdb_puts ("Byte granular.\n");
return 1;
}
else
{
DWORD err = GetLastError ();
if (err == ERROR_NOT_SUPPORTED)
- printf_filtered ("Function not supported\n");
+ gdb_printf ("Function not supported\n");
else
- printf_filtered ("Invalid selector 0x%x.\n", (unsigned) sel);
+ gdb_printf ("Invalid selector 0x%x.\n", (unsigned) sel);
return 0;
}
}
static void
display_selectors (const char * args, int from_tty)
{
- if (!current_thread)
+ if (inferior_ptid == null_ptid)
{
- puts_filtered ("Impossible to display selectors now.\n");
+ gdb_puts ("Impossible to display selectors now.\n");
return;
}
+
+ windows_thread_info *current_windows_thread
+ = windows_process.thread_rec (inferior_ptid, DONT_INVALIDATE_CONTEXT);
+
if (!args)
{
-
- puts_filtered ("Selector $cs\n");
- display_selector (current_thread->h,
- current_thread->context.SegCs);
- puts_filtered ("Selector $ds\n");
- display_selector (current_thread->h,
- current_thread->context.SegDs);
- puts_filtered ("Selector $es\n");
- display_selector (current_thread->h,
- current_thread->context.SegEs);
- puts_filtered ("Selector $ss\n");
- display_selector (current_thread->h,
- current_thread->context.SegSs);
- puts_filtered ("Selector $fs\n");
- display_selector (current_thread->h,
- current_thread->context.SegFs);
- puts_filtered ("Selector $gs\n");
- display_selector (current_thread->h,
- current_thread->context.SegGs);
+#ifdef __x86_64__
+ if (windows_process.wow64_process)
+ {
+ gdb_puts ("Selector $cs\n");
+ display_selector (current_windows_thread->h,
+ current_windows_thread->wow64_context.SegCs);
+ gdb_puts ("Selector $ds\n");
+ display_selector (current_windows_thread->h,
+ current_windows_thread->wow64_context.SegDs);
+ gdb_puts ("Selector $es\n");
+ display_selector (current_windows_thread->h,
+ current_windows_thread->wow64_context.SegEs);
+ gdb_puts ("Selector $ss\n");
+ display_selector (current_windows_thread->h,
+ current_windows_thread->wow64_context.SegSs);
+ gdb_puts ("Selector $fs\n");
+ display_selector (current_windows_thread->h,
+ current_windows_thread->wow64_context.SegFs);
+ gdb_puts ("Selector $gs\n");
+ display_selector (current_windows_thread->h,
+ current_windows_thread->wow64_context.SegGs);
+ }
+ else
+#endif
+ {
+ gdb_puts ("Selector $cs\n");
+ display_selector (current_windows_thread->h,
+ current_windows_thread->context.SegCs);
+ gdb_puts ("Selector $ds\n");
+ display_selector (current_windows_thread->h,
+ current_windows_thread->context.SegDs);
+ gdb_puts ("Selector $es\n");
+ display_selector (current_windows_thread->h,
+ current_windows_thread->context.SegEs);
+ gdb_puts ("Selector $ss\n");
+ display_selector (current_windows_thread->h,
+ current_windows_thread->context.SegSs);
+ gdb_puts ("Selector $fs\n");
+ display_selector (current_windows_thread->h,
+ current_windows_thread->context.SegFs);
+ gdb_puts ("Selector $gs\n");
+ display_selector (current_windows_thread->h,
+ current_windows_thread->context.SegGs);
+ }
}
else
{
int sel;
sel = parse_and_eval_long (args);
- printf_filtered ("Selector \"%s\"\n",args);
- display_selector (current_thread->h, sel);
+ gdb_printf ("Selector \"%s\"\n",args);
+ display_selector (current_windows_thread->h, sel);
}
}
-#define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \
- printf_unfiltered ("gdb: Target exception %s at %s\n", x, \
- host_address_to_string (\
- current_event.u.Exception.ExceptionRecord.ExceptionAddress))
+/* See nat/windows-nat.h. */
-static handle_exception_result
-handle_exception (struct target_waitstatus *ourstatus)
+bool
+windows_nat::windows_process_info::handle_access_violation
+ (const EXCEPTION_RECORD *rec)
{
- EXCEPTION_RECORD *rec = ¤t_event.u.Exception.ExceptionRecord;
- DWORD code = rec->ExceptionCode;
- handle_exception_result result = HANDLE_EXCEPTION_HANDLED;
-
- ourstatus->kind = TARGET_WAITKIND_STOPPED;
-
- /* Record the context of the current thread. */
- thread_rec (current_event.dwThreadId, -1);
-
- switch (code)
- {
- case EXCEPTION_ACCESS_VIOLATION:
- DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION");
- ourstatus->value.sig = GDB_SIGNAL_SEGV;
#ifdef __CYGWIN__
- {
- /* See if the access violation happened within the cygwin DLL
- itself. Cygwin uses a kind of exception handling to deal
- with passed-in invalid addresses. gdb should not treat
- these as real SEGVs since they will be silently handled by
- cygwin. A real SEGV will (theoretically) be caught by
- cygwin later in the process and will be sent as a
- cygwin-specific-signal. So, ignore SEGVs if they show up
- within the text segment of the DLL itself. */
- const char *fn;
- CORE_ADDR addr = (CORE_ADDR) (uintptr_t) rec->ExceptionAddress;
-
- if ((!cygwin_exceptions && (addr >= cygwin_load_start
- && addr < cygwin_load_end))
- || (find_pc_partial_function (addr, &fn, NULL, NULL)
- && startswith (fn, "KERNEL32!IsBad")))
- return HANDLE_EXCEPTION_UNHANDLED;
- }
+ /* See if the access violation happened within the cygwin DLL
+ itself. Cygwin uses a kind of exception handling to deal with
+ passed-in invalid addresses. gdb should not treat these as real
+ SEGVs since they will be silently handled by cygwin. A real SEGV
+ will (theoretically) be caught by cygwin later in the process and
+ will be sent as a cygwin-specific-signal. So, ignore SEGVs if
+ they show up within the text segment of the DLL itself. */
+ const char *fn;
+ CORE_ADDR addr = (CORE_ADDR) (uintptr_t) rec->ExceptionAddress;
+
+ if ((!cygwin_exceptions && (addr >= cygwin_load_start
+ && addr < cygwin_load_end))
+ || (find_pc_partial_function (addr, &fn, NULL, NULL)
+ && startswith (fn, "KERNEL32!IsBad")))
+ return true;
#endif
- break;
- case STATUS_STACK_OVERFLOW:
- DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW");
- ourstatus->value.sig = GDB_SIGNAL_SEGV;
- break;
- case STATUS_FLOAT_DENORMAL_OPERAND:
- DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND");
- ourstatus->value.sig = GDB_SIGNAL_FPE;
- break;
- case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
- DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED");
- ourstatus->value.sig = GDB_SIGNAL_FPE;
- break;
- case STATUS_FLOAT_INEXACT_RESULT:
- DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT");
- ourstatus->value.sig = GDB_SIGNAL_FPE;
- break;
- case STATUS_FLOAT_INVALID_OPERATION:
- DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION");
- ourstatus->value.sig = GDB_SIGNAL_FPE;
- break;
- case STATUS_FLOAT_OVERFLOW:
- DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW");
- ourstatus->value.sig = GDB_SIGNAL_FPE;
- break;
- case STATUS_FLOAT_STACK_CHECK:
- DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK");
- ourstatus->value.sig = GDB_SIGNAL_FPE;
- break;
- case STATUS_FLOAT_UNDERFLOW:
- DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW");
- ourstatus->value.sig = GDB_SIGNAL_FPE;
- break;
- case STATUS_FLOAT_DIVIDE_BY_ZERO:
- DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO");
- ourstatus->value.sig = GDB_SIGNAL_FPE;
- break;
- case STATUS_INTEGER_DIVIDE_BY_ZERO:
- DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO");
- ourstatus->value.sig = GDB_SIGNAL_FPE;
- break;
- case STATUS_INTEGER_OVERFLOW:
- DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW");
- ourstatus->value.sig = GDB_SIGNAL_FPE;
- break;
- case EXCEPTION_BREAKPOINT:
- DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT");
- ourstatus->value.sig = GDB_SIGNAL_TRAP;
- break;
- case DBG_CONTROL_C:
- DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C");
- ourstatus->value.sig = GDB_SIGNAL_INT;
- break;
- case DBG_CONTROL_BREAK:
- DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK");
- ourstatus->value.sig = GDB_SIGNAL_INT;
- break;
- case EXCEPTION_SINGLE_STEP:
- DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP");
- ourstatus->value.sig = GDB_SIGNAL_TRAP;
- break;
- case EXCEPTION_ILLEGAL_INSTRUCTION:
- DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION");
- ourstatus->value.sig = GDB_SIGNAL_ILL;
- break;
- case EXCEPTION_PRIV_INSTRUCTION:
- DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION");
- ourstatus->value.sig = GDB_SIGNAL_ILL;
- break;
- case EXCEPTION_NONCONTINUABLE_EXCEPTION:
- DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION");
- ourstatus->value.sig = GDB_SIGNAL_ILL;
- break;
- case MS_VC_EXCEPTION:
- if (rec->NumberParameters >= 3
- && (rec->ExceptionInformation[0] & 0xffffffff) == 0x1000)
- {
- DWORD named_thread_id;
- windows_thread_info *named_thread;
- CORE_ADDR thread_name_target;
-
- DEBUG_EXCEPTION_SIMPLE ("MS_VC_EXCEPTION");
-
- thread_name_target = rec->ExceptionInformation[1];
- named_thread_id = (DWORD) (0xffffffff & rec->ExceptionInformation[2]);
-
- if (named_thread_id == (DWORD) -1)
- named_thread_id = current_event.dwThreadId;
-
- named_thread = thread_rec (named_thread_id, 0);
- if (named_thread != NULL)
- {
- int thread_name_len;
- gdb::unique_xmalloc_ptr<char> thread_name;
-
- thread_name_len = target_read_string (thread_name_target,
- &thread_name, 1025, NULL);
- if (thread_name_len > 0)
- {
- thread_name.get ()[thread_name_len - 1] = '\0';
- xfree (named_thread->name);
- named_thread->name = thread_name.release ();
- }
- }
- ourstatus->value.sig = GDB_SIGNAL_TRAP;
- result = HANDLE_EXCEPTION_IGNORED;
- break;
- }
- /* treat improperly formed exception as unknown */
- /* FALLTHROUGH */
- default:
- /* Treat unhandled first chance exceptions specially. */
- if (current_event.u.Exception.dwFirstChance)
- return HANDLE_EXCEPTION_UNHANDLED;
- printf_unfiltered ("gdb: unknown target exception 0x%08x at %s\n",
- (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionCode,
- host_address_to_string (
- current_event.u.Exception.ExceptionRecord.ExceptionAddress));
- ourstatus->value.sig = GDB_SIGNAL_UNKNOWN;
- break;
- }
- exception_count++;
- last_sig = ourstatus->value.sig;
- return result;
+ return false;
}
/* Resume thread specified by ID, or all artificially suspended
static BOOL
windows_continue (DWORD continue_status, int id, int killed)
{
- windows_thread_info *th;
BOOL res;
- DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=0x%x, %s);\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- continue_status == DBG_CONTINUE ?
- "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED"));
+ windows_process.desired_stop_thread_id = id;
- for (th = &thread_head; (th = th->next) != NULL;)
- if ((id == -1 || id == (int) th->id)
- && th->suspended)
+ if (windows_process.matching_pending_stop (debug_events))
+ return TRUE;
+
+ for (auto &th : thread_list)
+ if (id == -1 || id == (int) th->tid)
{
- if (debug_registers_changed)
+#ifdef __x86_64__
+ if (windows_process.wow64_process)
{
- th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS;
- th->context.Dr0 = dr[0];
- th->context.Dr1 = dr[1];
- th->context.Dr2 = dr[2];
- th->context.Dr3 = dr[3];
- th->context.Dr6 = DR6_CLEAR_VALUE;
- th->context.Dr7 = dr[7];
+ if (th->debug_registers_changed)
+ {
+ th->wow64_context.ContextFlags |= CONTEXT_DEBUG_REGISTERS;
+ th->wow64_context.Dr0 = dr[0];
+ th->wow64_context.Dr1 = dr[1];
+ th->wow64_context.Dr2 = dr[2];
+ th->wow64_context.Dr3 = dr[3];
+ th->wow64_context.Dr6 = DR6_CLEAR_VALUE;
+ th->wow64_context.Dr7 = dr[7];
+ th->debug_registers_changed = false;
+ }
+ if (th->wow64_context.ContextFlags)
+ {
+ DWORD ec = 0;
+
+ if (GetExitCodeThread (th->h, &ec)
+ && ec == STILL_ACTIVE)
+ {
+ BOOL status = Wow64SetThreadContext (th->h,
+ &th->wow64_context);
+
+ if (!killed)
+ CHECK (status);
+ }
+ th->wow64_context.ContextFlags = 0;
+ }
}
- if (th->context.ContextFlags)
+ else
+#endif
{
- DWORD ec = 0;
-
- if (GetExitCodeThread (th->h, &ec)
- && ec == STILL_ACTIVE)
+ if (th->debug_registers_changed)
{
- BOOL status = SetThreadContext (th->h, &th->context);
+ th->context.ContextFlags |= CONTEXT_DEBUG_REGISTERS;
+ th->context.Dr0 = dr[0];
+ th->context.Dr1 = dr[1];
+ th->context.Dr2 = dr[2];
+ th->context.Dr3 = dr[3];
+ th->context.Dr6 = DR6_CLEAR_VALUE;
+ th->context.Dr7 = dr[7];
+ th->debug_registers_changed = false;
+ }
+ if (th->context.ContextFlags)
+ {
+ DWORD ec = 0;
+
+ if (GetExitCodeThread (th->h, &ec)
+ && ec == STILL_ACTIVE)
+ {
+ BOOL status = SetThreadContext (th->h, &th->context);
- if (!killed)
- CHECK (status);
+ if (!killed)
+ CHECK (status);
+ }
+ th->context.ContextFlags = 0;
}
- th->context.ContextFlags = 0;
}
- if (th->suspended > 0)
- (void) ResumeThread (th->h);
- th->suspended = 0;
+ th->resume ();
+ }
+ else
+ {
+ /* When single-stepping a specific thread, other threads must
+ be suspended. */
+ th->suspend ();
}
- res = ContinueDebugEvent (current_event.dwProcessId,
- current_event.dwThreadId,
- continue_status);
+ res = continue_last_debug_event (continue_status, debug_events);
if (!res)
error (_("Failed to resume program execution"
" (ContinueDebugEvent failed, error %u)"),
(unsigned int) GetLastError ());
- debug_registers_changed = 0;
return res;
}
static DWORD
fake_create_process (void)
{
- current_process_handle = OpenProcess (PROCESS_ALL_ACCESS, FALSE,
- current_event.dwProcessId);
- if (current_process_handle != NULL)
+ windows_process.handle
+ = OpenProcess (PROCESS_ALL_ACCESS, FALSE,
+ windows_process.current_event.dwProcessId);
+ if (windows_process.handle != NULL)
open_process_used = 1;
else
{
(unsigned) GetLastError ());
/* We can not debug anything in that case. */
}
- main_thread_id = current_event.dwThreadId;
- current_thread
- = windows_add_thread (ptid_t (current_event.dwProcessId, 0,
- current_event.dwThreadId),
- current_event.u.CreateThread.hThread,
- current_event.u.CreateThread.lpThreadLocalBase,
- true /* main_thread_p */);
- return main_thread_id;
+ windows_add_thread (ptid_t (windows_process.current_event.dwProcessId, 0,
+ windows_process.current_event.dwThreadId),
+ windows_process.current_event.u.CreateThread.hThread,
+ windows_process.current_event.u.CreateThread.lpThreadLocalBase,
+ true /* main_thread_p */);
+ return windows_process.current_event.dwThreadId;
}
void
if (sig != GDB_SIGNAL_0)
{
- if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT)
+ if (windows_process.current_event.dwDebugEventCode
+ != EXCEPTION_DEBUG_EVENT)
{
- DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig));
+ DEBUG_EXCEPT ("Cannot continue with signal %d here.", sig);
}
- else if (sig == last_sig)
+ else if (sig == windows_process.last_sig)
continue_status = DBG_EXCEPTION_NOT_HANDLED;
else
#if 0
}
if (continue_status == DBG_CONTINUE)
{
- DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig));
+ DEBUG_EXCEPT ("Cannot continue with signal %d.", sig);
}
}
#endif
- DEBUG_EXCEPT(("Can only continue with received signal %d.\n",
- last_sig));
+ DEBUG_EXCEPT ("Can only continue with received signal %d.",
+ windows_process.last_sig);
}
- last_sig = GDB_SIGNAL_0;
+ windows_process.last_sig = GDB_SIGNAL_0;
- DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=%ld, step=%d, sig=%d);\n",
- ptid.pid (), ptid.tid (), step, sig));
+ DEBUG_EXEC ("pid=%d, tid=0x%x, step=%d, sig=%d",
+ ptid.pid (), (unsigned) ptid.lwp (), step, sig);
/* Get context for currently selected thread. */
- th = thread_rec (inferior_ptid.tid (), FALSE);
+ th = windows_process.thread_rec (inferior_ptid, DONT_INVALIDATE_CONTEXT);
if (th)
{
- if (step)
+#ifdef __x86_64__
+ if (windows_process.wow64_process)
{
- /* Single step by setting t bit. */
- struct regcache *regcache = get_current_regcache ();
- struct gdbarch *gdbarch = regcache->arch ();
- fetch_registers (regcache, gdbarch_ps_regnum (gdbarch));
- th->context.EFlags |= FLAG_TRACE_BIT;
- }
+ if (step)
+ {
+ /* Single step by setting t bit. */
+ struct regcache *regcache = get_current_regcache ();
+ struct gdbarch *gdbarch = regcache->arch ();
+ fetch_registers (regcache, gdbarch_ps_regnum (gdbarch));
+ th->wow64_context.EFlags |= FLAG_TRACE_BIT;
+ }
- if (th->context.ContextFlags)
+ if (th->wow64_context.ContextFlags)
+ {
+ if (th->debug_registers_changed)
+ {
+ th->wow64_context.Dr0 = dr[0];
+ th->wow64_context.Dr1 = dr[1];
+ th->wow64_context.Dr2 = dr[2];
+ th->wow64_context.Dr3 = dr[3];
+ th->wow64_context.Dr6 = DR6_CLEAR_VALUE;
+ th->wow64_context.Dr7 = dr[7];
+ th->debug_registers_changed = false;
+ }
+ CHECK (Wow64SetThreadContext (th->h, &th->wow64_context));
+ th->wow64_context.ContextFlags = 0;
+ }
+ }
+ else
+#endif
{
- if (debug_registers_changed)
+ if (step)
+ {
+ /* Single step by setting t bit. */
+ struct regcache *regcache = get_current_regcache ();
+ struct gdbarch *gdbarch = regcache->arch ();
+ fetch_registers (regcache, gdbarch_ps_regnum (gdbarch));
+ th->context.EFlags |= FLAG_TRACE_BIT;
+ }
+
+ if (th->context.ContextFlags)
{
- th->context.Dr0 = dr[0];
- th->context.Dr1 = dr[1];
- th->context.Dr2 = dr[2];
- th->context.Dr3 = dr[3];
- th->context.Dr6 = DR6_CLEAR_VALUE;
- th->context.Dr7 = dr[7];
+ if (th->debug_registers_changed)
+ {
+ th->context.Dr0 = dr[0];
+ th->context.Dr1 = dr[1];
+ th->context.Dr2 = dr[2];
+ th->context.Dr3 = dr[3];
+ th->context.Dr6 = DR6_CLEAR_VALUE;
+ th->context.Dr7 = dr[7];
+ th->debug_registers_changed = false;
+ }
+ CHECK (SetThreadContext (th->h, &th->context));
+ th->context.ContextFlags = 0;
}
- CHECK (SetThreadContext (th->h, &th->context));
- th->context.ContextFlags = 0;
}
}
if (resume_all)
windows_continue (continue_status, -1, 0);
else
- windows_continue (continue_status, ptid.tid (), 0);
+ windows_continue (continue_status, ptid.lwp (), 0);
}
/* Ctrl-C handler used when the inferior is not run in the same console. The
if (!new_console && !attach_flag)
return TRUE;
- if (!DebugBreakProcess (current_process_handle))
- warning (_("Could not interrupt program. "
- "Press Ctrl-c in the program console."));
+#ifdef __x86_64__
+ if (windows_process.wow64_process)
+ {
+ /* Call DbgUiRemoteBreakin of the 32bit ntdll.dll in the target process.
+ DebugBreakProcess would call the one of the 64bit ntdll.dll, which
+ can't be correctly handled by gdb. */
+ if (wow64_dbgbreak == nullptr)
+ {
+ CORE_ADDR addr;
+ if (!find_minimal_symbol_address ("ntdll!DbgUiRemoteBreakin",
+ &addr, 0))
+ wow64_dbgbreak = (void *) addr;
+ }
+
+ if (wow64_dbgbreak != nullptr)
+ {
+ HANDLE thread = CreateRemoteThread (windows_process.handle, NULL,
+ 0, (LPTHREAD_START_ROUTINE)
+ wow64_dbgbreak, NULL, 0, NULL);
+ if (thread)
+ CloseHandle (thread);
+ }
+ }
+ else
+#endif
+ {
+ if (!DebugBreakProcess (windows_process.handle))
+ warning (_("Could not interrupt program. "
+ "Press Ctrl-c in the program console."));
+ }
/* Return true to tell that Ctrl-C has been handled. */
return TRUE;
/* Get the next event from the child. Returns a non-zero thread id if the event
requires handling by WFI (or whatever). */
-static int
-get_windows_debug_event (struct target_ops *ops,
- int pid, struct target_waitstatus *ourstatus)
+
+int
+windows_nat_target::get_windows_debug_event (int pid,
+ struct target_waitstatus *ourstatus)
{
BOOL debug_event;
DWORD continue_status, event_code;
- windows_thread_info *th;
- static windows_thread_info dummy_thread_info;
DWORD thread_id = 0;
- last_sig = GDB_SIGNAL_0;
+ /* If there is a relevant pending stop, report it now. See the
+ comment by the definition of "pending_stops" for details on why
+ this is needed. */
+ gdb::optional<pending_stop> stop
+ = windows_process.fetch_pending_stop (debug_events);
+ if (stop.has_value ())
+ {
+ thread_id = stop->thread_id;
+ *ourstatus = stop->status;
+
+ ptid_t ptid (windows_process.current_event.dwProcessId, thread_id);
+ windows_thread_info *th
+ = windows_process.thread_rec (ptid, INVALIDATE_CONTEXT);
+ th->reload_context = true;
- if (!(debug_event = WaitForDebugEvent (¤t_event, 1000)))
+ return thread_id;
+ }
+
+ windows_process.last_sig = GDB_SIGNAL_0;
+ DEBUG_EVENT *current_event = &windows_process.current_event;
+
+ if (!(debug_event = wait_for_debug_event (&windows_process.current_event,
+ 1000)))
goto out;
- event_count++;
continue_status = DBG_CONTINUE;
- event_code = current_event.dwDebugEventCode;
- ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
- th = NULL;
+ event_code = windows_process.current_event.dwDebugEventCode;
+ ourstatus->set_spurious ();
have_saved_context = 0;
switch (event_code)
{
case CREATE_THREAD_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "CREATE_THREAD_DEBUG_EVENT"));
+ DEBUG_EVENTS ("kernel event for pid=%u tid=0x%x code=%s",
+ (unsigned) current_event->dwProcessId,
+ (unsigned) current_event->dwThreadId,
+ "CREATE_THREAD_DEBUG_EVENT");
if (saw_create != 1)
{
- struct inferior *inf;
- inf = find_inferior_pid (current_event.dwProcessId);
+ inferior *inf = find_inferior_pid (this, current_event->dwProcessId);
if (!saw_create && inf->attach_flag)
{
/* Kludge around a Windows bug where first event is a create
break;
}
/* Record the existence of this thread. */
- thread_id = current_event.dwThreadId;
- th = windows_add_thread
- (ptid_t (current_event.dwProcessId, 0, current_event.dwThreadId),
- current_event.u.CreateThread.hThread,
- current_event.u.CreateThread.lpThreadLocalBase,
+ thread_id = current_event->dwThreadId;
+ windows_add_thread
+ (ptid_t (current_event->dwProcessId, current_event->dwThreadId, 0),
+ current_event->u.CreateThread.hThread,
+ current_event->u.CreateThread.lpThreadLocalBase,
false /* main_thread_p */);
break;
case EXIT_THREAD_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "EXIT_THREAD_DEBUG_EVENT"));
- windows_delete_thread (ptid_t (current_event.dwProcessId, 0,
- current_event.dwThreadId),
- current_event.u.ExitThread.dwExitCode,
+ DEBUG_EVENTS ("kernel event for pid=%u tid=0x%x code=%s",
+ (unsigned) current_event->dwProcessId,
+ (unsigned) current_event->dwThreadId,
+ "EXIT_THREAD_DEBUG_EVENT");
+ windows_delete_thread (ptid_t (current_event->dwProcessId,
+ current_event->dwThreadId, 0),
+ current_event->u.ExitThread.dwExitCode,
false /* main_thread_p */);
- th = &dummy_thread_info;
break;
case CREATE_PROCESS_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "CREATE_PROCESS_DEBUG_EVENT"));
- CloseHandle (current_event.u.CreateProcessInfo.hFile);
+ DEBUG_EVENTS ("kernel event for pid=%u tid=0x%x code=%s",
+ (unsigned) current_event->dwProcessId,
+ (unsigned) current_event->dwThreadId,
+ "CREATE_PROCESS_DEBUG_EVENT");
+ CloseHandle (current_event->u.CreateProcessInfo.hFile);
if (++saw_create != 1)
break;
- current_process_handle = current_event.u.CreateProcessInfo.hProcess;
- main_thread_id = current_event.dwThreadId;
+ windows_process.handle = current_event->u.CreateProcessInfo.hProcess;
/* Add the main thread. */
- th = windows_add_thread
- (ptid_t (current_event.dwProcessId, 0,
- current_event.dwThreadId),
- current_event.u.CreateProcessInfo.hThread,
- current_event.u.CreateProcessInfo.lpThreadLocalBase,
+ windows_add_thread
+ (ptid_t (current_event->dwProcessId,
+ current_event->dwThreadId, 0),
+ current_event->u.CreateProcessInfo.hThread,
+ current_event->u.CreateProcessInfo.lpThreadLocalBase,
true /* main_thread_p */);
- thread_id = current_event.dwThreadId;
+ thread_id = current_event->dwThreadId;
break;
case EXIT_PROCESS_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "EXIT_PROCESS_DEBUG_EVENT"));
+ DEBUG_EVENTS ("kernel event for pid=%u tid=0x%x code=%s",
+ (unsigned) current_event->dwProcessId,
+ (unsigned) current_event->dwThreadId,
+ "EXIT_PROCESS_DEBUG_EVENT");
if (!windows_initialization_done)
{
target_terminal::ours ();
target_mourn_inferior (inferior_ptid);
error (_("During startup program exited with code 0x%x."),
- (unsigned int) current_event.u.ExitProcess.dwExitCode);
+ (unsigned int) current_event->u.ExitProcess.dwExitCode);
}
else if (saw_create == 1)
{
- windows_delete_thread (ptid_t (current_event.dwProcessId, 0,
- main_thread_id),
+ windows_delete_thread (ptid_t (current_event->dwProcessId,
+ current_event->dwThreadId, 0),
0, true /* main_thread_p */);
- ourstatus->kind = TARGET_WAITKIND_EXITED;
- ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode;
- thread_id = main_thread_id;
+ DWORD exit_status = current_event->u.ExitProcess.dwExitCode;
+ /* If the exit status looks like a fatal exception, but we
+ don't recognize the exception's code, make the original
+ exit status value available, to avoid losing
+ information. */
+ int exit_signal
+ = WIFSIGNALED (exit_status) ? WTERMSIG (exit_status) : -1;
+ if (exit_signal == -1)
+ ourstatus->set_exited (exit_status);
+ else
+ ourstatus->set_signalled (gdb_signal_from_host (exit_signal));
+
+ thread_id = current_event->dwThreadId;
}
break;
case LOAD_DLL_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "LOAD_DLL_DEBUG_EVENT"));
- CloseHandle (current_event.u.LoadDll.hFile);
+ DEBUG_EVENTS ("kernel event for pid=%u tid=0x%x code=%s",
+ (unsigned) current_event->dwProcessId,
+ (unsigned) current_event->dwThreadId,
+ "LOAD_DLL_DEBUG_EVENT");
+ CloseHandle (current_event->u.LoadDll.hFile);
if (saw_create != 1 || ! windows_initialization_done)
break;
- catch_errors (handle_load_dll);
- ourstatus->kind = TARGET_WAITKIND_LOADED;
- ourstatus->value.integer = 0;
- thread_id = main_thread_id;
+ try
+ {
+ windows_process.dll_loaded_event ();
+ }
+ catch (const gdb_exception &ex)
+ {
+ exception_print (gdb_stderr, ex);
+ }
+ ourstatus->set_loaded ();
+ thread_id = current_event->dwThreadId;
break;
case UNLOAD_DLL_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "UNLOAD_DLL_DEBUG_EVENT"));
+ DEBUG_EVENTS ("kernel event for pid=%u tid=0x%x code=%s",
+ (unsigned) current_event->dwProcessId,
+ (unsigned) current_event->dwThreadId,
+ "UNLOAD_DLL_DEBUG_EVENT");
if (saw_create != 1 || ! windows_initialization_done)
break;
- catch_errors (handle_unload_dll);
- ourstatus->kind = TARGET_WAITKIND_LOADED;
- ourstatus->value.integer = 0;
- thread_id = main_thread_id;
+ try
+ {
+ windows_process.handle_unload_dll ();
+ }
+ catch (const gdb_exception &ex)
+ {
+ exception_print (gdb_stderr, ex);
+ }
+ ourstatus->set_loaded ();
+ thread_id = current_event->dwThreadId;
break;
case EXCEPTION_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "EXCEPTION_DEBUG_EVENT"));
+ DEBUG_EVENTS ("kernel event for pid=%u tid=0x%x code=%s",
+ (unsigned) current_event->dwProcessId,
+ (unsigned) current_event->dwThreadId,
+ "EXCEPTION_DEBUG_EVENT");
if (saw_create != 1)
break;
- switch (handle_exception (ourstatus))
+ switch (windows_process.handle_exception (ourstatus, debug_exceptions))
{
case HANDLE_EXCEPTION_UNHANDLED:
default:
continue_status = DBG_EXCEPTION_NOT_HANDLED;
break;
case HANDLE_EXCEPTION_HANDLED:
- thread_id = current_event.dwThreadId;
+ thread_id = current_event->dwThreadId;
break;
case HANDLE_EXCEPTION_IGNORED:
continue_status = DBG_CONTINUE;
break;
case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */
- DEBUG_EVENTS (("gdb: kernel event for pid=%u tid=0x%x code=%s)\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "OUTPUT_DEBUG_STRING_EVENT"));
+ DEBUG_EVENTS ("kernel event for pid=%u tid=0x%x code=%s",
+ (unsigned) current_event->dwProcessId,
+ (unsigned) current_event->dwThreadId,
+ "OUTPUT_DEBUG_STRING_EVENT");
if (saw_create != 1)
break;
- thread_id = handle_output_debug_string (ourstatus);
+ thread_id = windows_process.handle_output_debug_string (ourstatus);
break;
default:
if (saw_create != 1)
break;
- printf_unfiltered ("gdb: kernel event for pid=%u tid=0x%x\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId);
- printf_unfiltered (" unknown event code %u\n",
- (unsigned) current_event.dwDebugEventCode);
+ gdb_printf ("gdb: kernel event for pid=%u tid=0x%x\n",
+ (unsigned) current_event->dwProcessId,
+ (unsigned) current_event->dwThreadId);
+ gdb_printf (" unknown event code %u\n",
+ (unsigned) current_event->dwDebugEventCode);
break;
}
if (!thread_id || saw_create != 1)
{
- CHECK (windows_continue (continue_status, -1, 0));
+ CHECK (windows_continue (continue_status,
+ windows_process.desired_stop_thread_id, 0));
}
- else
+ else if (windows_process.desired_stop_thread_id != -1
+ && windows_process.desired_stop_thread_id != thread_id)
{
- inferior_ptid = ptid_t (current_event.dwProcessId, 0, thread_id);
- current_thread = th;
- if (!current_thread)
- current_thread = thread_rec (thread_id, TRUE);
+ /* Pending stop. See the comment by the definition of
+ "pending_stops" for details on why this is needed. */
+ DEBUG_EVENTS ("get_windows_debug_event - "
+ "unexpected stop in 0x%x (expecting 0x%x)",
+ thread_id, windows_process.desired_stop_thread_id);
+
+ if (current_event->dwDebugEventCode == EXCEPTION_DEBUG_EVENT
+ && ((current_event->u.Exception.ExceptionRecord.ExceptionCode
+ == EXCEPTION_BREAKPOINT)
+ || (current_event->u.Exception.ExceptionRecord.ExceptionCode
+ == STATUS_WX86_BREAKPOINT))
+ && windows_initialization_done)
+ {
+ ptid_t ptid = ptid_t (current_event->dwProcessId, thread_id, 0);
+ windows_thread_info *th
+ = windows_process.thread_rec (ptid, INVALIDATE_CONTEXT);
+ th->stopped_at_software_breakpoint = true;
+ th->pc_adjusted = false;
+ }
+ windows_process.pending_stops.push_back
+ ({thread_id, *ourstatus, windows_process.current_event});
+ thread_id = 0;
+ CHECK (windows_continue (continue_status,
+ windows_process.desired_stop_thread_id, 0));
}
out:
/* Wait for interesting events to occur in the target process. */
ptid_t
windows_nat_target::wait (ptid_t ptid, struct target_waitstatus *ourstatus,
- int options)
+ target_wait_flags options)
{
int pid = -1;
the user tries to resume the execution in the inferior.
This is a classic race that we should try to fix one day. */
SetConsoleCtrlHandler (&ctrl_c_handler, TRUE);
- retval = get_windows_debug_event (this, pid, ourstatus);
+ retval = get_windows_debug_event (pid, ourstatus);
SetConsoleCtrlHandler (&ctrl_c_handler, FALSE);
if (retval)
- return ptid_t (current_event.dwProcessId, 0, retval);
+ {
+ ptid_t result = ptid_t (windows_process.current_event.dwProcessId,
+ retval, 0);
+
+ if (ourstatus->kind () != TARGET_WAITKIND_EXITED
+ && ourstatus->kind () != TARGET_WAITKIND_SIGNALLED)
+ {
+ windows_thread_info *th
+ = windows_process.thread_rec (result, INVALIDATE_CONTEXT);
+
+ if (th != nullptr)
+ {
+ th->stopped_at_software_breakpoint = false;
+ if (windows_process.current_event.dwDebugEventCode
+ == EXCEPTION_DEBUG_EVENT
+ && ((windows_process.current_event.u.Exception.ExceptionRecord.ExceptionCode
+ == EXCEPTION_BREAKPOINT)
+ || (windows_process.current_event.u.Exception.ExceptionRecord.ExceptionCode
+ == STATUS_WX86_BREAKPOINT))
+ && windows_initialization_done)
+ {
+ th->stopped_at_software_breakpoint = true;
+ th->pc_adjusted = false;
+ }
+ }
+ }
+
+ return result;
+ }
else
{
int detach = 0;
}
}
-/* Iterate over all DLLs currently mapped by our inferior, and
- add them to our list of solibs. */
-
-static void
-windows_add_all_dlls (void)
-{
- HMODULE dummy_hmodule;
- DWORD cb_needed;
- HMODULE *hmodules;
- int i;
-
- if (EnumProcessModules (current_process_handle, &dummy_hmodule,
- sizeof (HMODULE), &cb_needed) == 0)
- return;
-
- if (cb_needed < 1)
- return;
-
- hmodules = (HMODULE *) alloca (cb_needed);
- if (EnumProcessModules (current_process_handle, hmodules,
- cb_needed, &cb_needed) == 0)
- return;
-
- for (i = 1; i < (int) (cb_needed / sizeof (HMODULE)); i++)
- {
- MODULEINFO mi;
-#ifdef __USEWIDE
- wchar_t dll_name[__PMAX];
- char name[__PMAX];
-#else
- char dll_name[__PMAX];
- char *name;
-#endif
- if (GetModuleInformation (current_process_handle, hmodules[i],
- &mi, sizeof (mi)) == 0)
- continue;
- if (GetModuleFileNameEx (current_process_handle, hmodules[i],
- dll_name, sizeof (dll_name)) == 0)
- continue;
-#ifdef __USEWIDE
- wcstombs (name, dll_name, __PMAX);
-#else
- name = dll_name;
-#endif
-
- solib_end->next = windows_make_so (name, mi.lpBaseOfDll);
- solib_end = solib_end->next;
- }
-}
-
-static void
-do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching)
+void
+windows_nat_target::do_initial_windows_stuff (DWORD pid, bool attaching)
{
int i;
struct inferior *inf;
- last_sig = GDB_SIGNAL_0;
- event_count = 0;
- exception_count = 0;
+ windows_process.last_sig = GDB_SIGNAL_0;
open_process_used = 0;
- debug_registers_changed = 0;
- debug_registers_used = 0;
for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++)
dr[i] = 0;
#ifdef __CYGWIN__
cygwin_load_start = cygwin_load_end = 0;
#endif
- current_event.dwProcessId = pid;
- memset (¤t_event, 0, sizeof (current_event));
- if (!target_is_pushed (ops))
- push_target (ops);
+ windows_process.current_event.dwProcessId = pid;
+ memset (&windows_process.current_event, 0,
+ sizeof (windows_process.current_event));
+ inf = current_inferior ();
+ if (!inf->target_is_pushed (this))
+ inf->push_target (this);
disable_breakpoints_in_shlibs ();
windows_clear_solib ();
clear_proceed_status (0);
init_wait_for_inferior ();
- inf = current_inferior ();
+#ifdef __x86_64__
+ windows_process.ignore_first_breakpoint
+ = !attaching && windows_process.wow64_process;
+
+ if (!windows_process.wow64_process)
+ {
+ windows_set_context_register_offsets (amd64_mappings);
+ windows_set_segment_register_p (amd64_windows_segment_register_p);
+ }
+ else
+#endif
+ {
+ windows_set_context_register_offsets (i386_mappings);
+ windows_set_segment_register_p (i386_windows_segment_register_p);
+ }
+
inferior_appeared (inf, pid);
inf->attach_flag = attaching;
- /* Make the new process the current inferior, so terminal handling
- can rely on it. When attaching, we don't know about any thread
- id here, but that's OK --- nothing should be referencing the
- current thread until we report an event out of windows_wait. */
- inferior_ptid = ptid_t (pid);
-
target_terminal::init ();
target_terminal::inferior ();
windows_initialization_done = 0;
+ ptid_t last_ptid;
+
while (1)
{
struct target_waitstatus status;
- ops->wait (minus_one_ptid, &status, 0);
+ last_ptid = this->wait (minus_one_ptid, &status, 0);
/* Note windows_wait returns TARGET_WAITKIND_SPURIOUS for thread
events. */
- if (status.kind != TARGET_WAITKIND_LOADED
- && status.kind != TARGET_WAITKIND_SPURIOUS)
+ if (status.kind () != TARGET_WAITKIND_LOADED
+ && status.kind () != TARGET_WAITKIND_SPURIOUS)
break;
- ops->resume (minus_one_ptid, 0, GDB_SIGNAL_0);
+ this->resume (minus_one_ptid, 0, GDB_SIGNAL_0);
}
+ switch_to_thread (find_thread_ptid (this, last_ptid));
+
/* Now that the inferior has been started and all DLLs have been mapped,
we can iterate over all DLLs and load them in.
Rather than try to work around this sort of issue, it is much
simpler to just ignore DLL load/unload events during the startup
phase, and then process them all in one batch now. */
- windows_add_all_dlls ();
+ windows_process.add_all_dlls ();
windows_initialization_done = 1;
return;
pid = parse_pid_to_attach (args);
if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0)
- {
- printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n");
- printf_unfiltered ("This can cause attach to "
- "fail on Windows NT/2K/XP\n");
- }
+ warning ("Failed to get SE_DEBUG_NAME privilege\n"
+ "This can cause attach to fail on Windows NT/2K/XP");
windows_init_thread_list ();
ok = DebugActiveProcess (pid);
#endif
if (!ok)
- error (_("Can't attach to process."));
+ error (_("Can't attach to process %u (error %u)"),
+ (unsigned) pid, (unsigned) GetLastError ());
DebugSetProcessKillOnExit (FALSE);
- if (from_tty)
- {
- char *exec_file = (char *) get_exec_file (0);
+ target_announce_attach (from_tty, pid);
- if (exec_file)
- printf_unfiltered ("Attaching to program `%s', %s\n", exec_file,
- target_pid_to_str (ptid_t (pid)).c_str ());
- else
- printf_unfiltered ("Attaching to %s\n",
- target_pid_to_str (ptid_t (pid)).c_str ());
+#ifdef __x86_64__
+ HANDLE h = OpenProcess (PROCESS_QUERY_INFORMATION, FALSE, pid);
+ if (h != NULL)
+ {
+ BOOL wow64;
+ if (IsWow64Process (h, &wow64))
+ windows_process.wow64_process = wow64;
+ CloseHandle (h);
}
+#endif
- do_initial_windows_stuff (this, pid, 1);
+ do_initial_windows_stuff (pid, 1);
target_terminal::ours ();
}
ptid_t ptid = minus_one_ptid;
resume (ptid, 0, GDB_SIGNAL_0);
- if (!DebugActiveProcessStop (current_event.dwProcessId))
+ if (!DebugActiveProcessStop (windows_process.current_event.dwProcessId))
{
error (_("Can't detach process %u (error %u)"),
- (unsigned) current_event.dwProcessId, (unsigned) GetLastError ());
+ (unsigned) windows_process.current_event.dwProcessId,
+ (unsigned) GetLastError ());
detached = 0;
}
DebugSetProcessKillOnExit (FALSE);
- if (detached && from_tty)
- {
- const char *exec_file = get_exec_file (0);
- if (exec_file == 0)
- exec_file = "";
- printf_unfiltered ("Detaching from program: %s, Pid %u\n", exec_file,
- (unsigned) current_event.dwProcessId);
- }
+ if (detached)
+ target_announce_detach (from_tty);
x86_cleanup_dregs ();
- inferior_ptid = null_ptid;
+ switch_to_no_thread ();
detach_inferior (inf);
maybe_unpush_target ();
DWORD cbNeeded;
cbNeeded = 0;
- if (!EnumProcessModules (current_process_handle, &dh_buf,
- sizeof (HMODULE), &cbNeeded) || !cbNeeded)
- return 0;
+#ifdef __x86_64__
+ if (windows_process.wow64_process)
+ {
+ if (!EnumProcessModulesEx (windows_process.handle,
+ &dh_buf, sizeof (HMODULE), &cbNeeded,
+ LIST_MODULES_32BIT)
+ || !cbNeeded)
+ return 0;
+ }
+ else
+#endif
+ {
+ if (!EnumProcessModules (windows_process.handle,
+ &dh_buf, sizeof (HMODULE), &cbNeeded)
+ || !cbNeeded)
+ return 0;
+ }
/* We know the executable is always first in the list of modules,
which we just fetched. So no need to fetch more. */
error (_("Error converting executable filename to POSIX: %d."), errno);
}
#else
- len = GetModuleFileNameEx (current_process_handle,
+ len = GetModuleFileNameEx (windows_process.handle,
dh_buf, exe_name_ret, exe_name_max_len);
if (len == 0)
error (_("Error getting executable filename: %u."),
{
struct inferior *inf = current_inferior ();
- printf_unfiltered ("\tUsing the running image of %s %s.\n",
- inf->attach_flag ? "attached" : "child",
- target_pid_to_str (inferior_ptid).c_str ());
+ gdb_printf ("\tUsing the running image of %s %s.\n",
+ inf->attach_flag ? "attached" : "child",
+ target_pid_to_str (inferior_ptid).c_str ());
}
/* Modify CreateProcess parameters for use of a new separate console.
mbstowcs (copy, env[i], len);
equalpos = wcschr (copy, L'=');
if (equalpos)
- *equalpos = L'\0';
+ *equalpos = L'\0';
SetEnvironmentVariableW (copy, NULL);
}
xfree (copy);
PROCESS_INFORMATION pi;
BOOL ret;
DWORD flags = 0;
- const char *inferior_io_terminal = get_inferior_io_terminal ();
+ const std::string &inferior_tty = current_inferior ()->tty ();
if (!exec_file)
error (_("No executable specified, use `target exec'."));
- const char *inferior_cwd = get_inferior_cwd ();
+ const char *inferior_cwd = current_inferior ()->cwd ().c_str ();
std::string expanded_infcwd;
- if (inferior_cwd != NULL)
+ if (*inferior_cwd == '\0')
+ inferior_cwd = nullptr;
+ else
{
expanded_infcwd = gdb_tilde_expand (inferior_cwd);
/* Mirror slashes on inferior's cwd. */
{
sh = get_shell ();
if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0)
- error (_("Error starting executable via shell: %d"), errno);
+ error (_("Error starting executable via shell: %d"), errno);
#ifdef __USEWIDE
len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0)
+ mbstowcs (NULL, allargs, 0) + 2;
w32_env = NULL;
}
- if (!inferior_io_terminal)
+ if (inferior_tty.empty ())
tty = ostdin = ostdout = ostderr = -1;
else
{
- tty = open (inferior_io_terminal, O_RDWR | O_NOCTTY);
+ tty = open (inferior_tty.c_str (), O_RDWR | O_NOCTTY);
if (tty < 0)
{
- print_sys_errmsg (inferior_io_terminal, errno);
+ print_sys_errmsg (inferior_tty.c_str (), errno);
ostdin = ostdout = ostderr = -1;
}
else
redirect_inferior_handles (allargs, allargs_copy,
&fd_inp, &fd_out, &fd_err);
if (errno)
- warning (_("Error in redirection: %s."), strerror (errno));
+ warning (_("Error in redirection: %s."), safe_strerror (errno));
else
errno = e;
allargs_len = strlen (allargs_copy);
}
/* If not all the standard streams are redirected by the command
- line, use inferior_io_terminal for those which aren't. */
- if (inferior_io_terminal
+ line, use INFERIOR_TTY for those which aren't. */
+ if (!inferior_tty.empty ()
&& !(fd_inp >= 0 && fd_out >= 0 && fd_err >= 0))
{
SECURITY_ATTRIBUTES sa;
sa.nLength = sizeof(sa);
sa.lpSecurityDescriptor = 0;
sa.bInheritHandle = TRUE;
- tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE,
+ tty = CreateFileA (inferior_tty.c_str (), GENERIC_READ | GENERIC_WRITE,
0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
if (tty == INVALID_HANDLE_VALUE)
warning (_("Warning: Failed to open TTY %s, error %#x."),
- inferior_io_terminal, (unsigned) GetLastError ());
+ inferior_tty.c_str (), (unsigned) GetLastError ());
}
if (redirected || tty != INVALID_HANDLE_VALUE)
{
error (_("Error creating process %s, (error %u)."),
exec_file, (unsigned) GetLastError ());
+#ifdef __x86_64__
+ BOOL wow64;
+ if (IsWow64Process (pi.hProcess, &wow64))
+ windows_process.wow64_process = wow64;
+#endif
+
CloseHandle (pi.hThread);
CloseHandle (pi.hProcess);
else
saw_create = 0;
- do_initial_windows_stuff (this, pi.dwProcessId, 0);
+ do_initial_windows_stuff (pi.dwProcessId, 0);
/* windows_continue (DBG_CONTINUE, -1, 0); */
}
x86_cleanup_dregs();
if (open_process_used)
{
- CHECK (CloseHandle (current_process_handle));
+ CHECK (CloseHandle (windows_process.handle));
open_process_used = 0;
}
+ windows_process.siginfo_er.ExceptionCode = 0;
inf_child_target::mourn_inferior ();
}
void
windows_nat_target::interrupt ()
{
- DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n"));
- CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId));
+ DEBUG_EVENTS ("GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)");
+ CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT,
+ windows_process.current_event.dwProcessId));
registers_changed (); /* refresh register state */
}
if (writebuf != NULL)
{
- DEBUG_MEM (("gdb: write target memory, %s bytes at %s\n",
- pulongest (len), core_addr_to_string (memaddr)));
- success = WriteProcessMemory (current_process_handle,
+ DEBUG_MEM ("write target memory, %s bytes at %s",
+ pulongest (len), core_addr_to_string (memaddr));
+ success = WriteProcessMemory (windows_process.handle,
(LPVOID) (uintptr_t) memaddr, writebuf,
len, &done);
if (!success)
lasterror = GetLastError ();
- FlushInstructionCache (current_process_handle,
+ FlushInstructionCache (windows_process.handle,
(LPCVOID) (uintptr_t) memaddr, len);
}
else
{
- DEBUG_MEM (("gdb: read target memory, %s bytes at %s\n",
- pulongest (len), core_addr_to_string (memaddr)));
- success = ReadProcessMemory (current_process_handle,
+ DEBUG_MEM ("read target memory, %s bytes at %s",
+ pulongest (len), core_addr_to_string (memaddr));
+ success = ReadProcessMemory (windows_process.handle,
(LPCVOID) (uintptr_t) memaddr, readbuf,
len, &done);
if (!success)
void
windows_nat_target::kill ()
{
- CHECK (TerminateProcess (current_process_handle, 0));
+ CHECK (TerminateProcess (windows_process.handle, 0));
for (;;)
{
if (!windows_continue (DBG_CONTINUE, -1, 1))
break;
- if (!WaitForDebugEvent (¤t_event, INFINITE))
+ if (!wait_for_debug_event (&windows_process.current_event, INFINITE))
break;
- if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT)
+ if (windows_process.current_event.dwDebugEventCode
+ == EXIT_PROCESS_DEBUG_EVENT)
break;
}
void
windows_nat_target::close ()
{
- DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n",
- inferior_ptid.pid ()));
+ DEBUG_EVENTS ("inferior_ptid=%d\n", inferior_ptid.pid ());
}
/* Convert pid to printable format. */
std::string
windows_nat_target::pid_to_str (ptid_t ptid)
{
- if (ptid.tid () != 0)
- return string_printf ("Thread %d.0x%lx", ptid.pid (), ptid.tid ());
+ if (ptid.lwp () != 0)
+ return string_printf ("Thread %d.0x%lx", ptid.pid (), ptid.lwp ());
return normal_pid_to_str (ptid);
}
ULONGEST offset, ULONGEST len,
ULONGEST *xfered_len)
{
- struct obstack obstack;
+ auto_obstack obstack;
const char *buf;
LONGEST len_avail;
- struct so_list *so;
if (writebuf)
return TARGET_XFER_E_IO;
- obstack_init (&obstack);
obstack_grow_str (&obstack, "<library-list>\n");
- for (so = solib_start.next; so; so = so->next)
- {
- lm_info_windows *li = (lm_info_windows *) so->lm_info;
-
- windows_xfer_shared_library (so->so_name, (CORE_ADDR)
- (uintptr_t) li->load_addr,
- target_gdbarch (), &obstack);
- }
+ for (windows_solib &so : solibs)
+ windows_xfer_shared_library (so.name.c_str (),
+ (CORE_ADDR) (uintptr_t) so.load_addr,
+ &so.text_offset,
+ target_gdbarch (), &obstack);
obstack_grow_str0 (&obstack, "</library-list>\n");
buf = (const char *) obstack_finish (&obstack);
memcpy (readbuf, buf + offset, len);
}
- obstack_free (&obstack, NULL);
*xfered_len = (ULONGEST) len;
return len != 0 ? TARGET_XFER_OK : TARGET_XFER_EOF;
}
+/* Helper for windows_nat_target::xfer_partial that handles signal info. */
+
+static enum target_xfer_status
+windows_xfer_siginfo (gdb_byte *readbuf, ULONGEST offset, ULONGEST len,
+ ULONGEST *xfered_len)
+{
+ char *buf = (char *) &windows_process.siginfo_er;
+ size_t bufsize = sizeof (windows_process.siginfo_er);
+
+#ifdef __x86_64__
+ EXCEPTION_RECORD32 er32;
+ if (windows_process.wow64_process)
+ {
+ buf = (char *) &er32;
+ bufsize = sizeof (er32);
+
+ er32.ExceptionCode = windows_process.siginfo_er.ExceptionCode;
+ er32.ExceptionFlags = windows_process.siginfo_er.ExceptionFlags;
+ er32.ExceptionRecord
+ = (uintptr_t) windows_process.siginfo_er.ExceptionRecord;
+ er32.ExceptionAddress
+ = (uintptr_t) windows_process.siginfo_er.ExceptionAddress;
+ er32.NumberParameters = windows_process.siginfo_er.NumberParameters;
+ int i;
+ for (i = 0; i < EXCEPTION_MAXIMUM_PARAMETERS; i++)
+ er32.ExceptionInformation[i]
+ = windows_process.siginfo_er.ExceptionInformation[i];
+ }
+#endif
+
+ if (windows_process.siginfo_er.ExceptionCode == 0)
+ return TARGET_XFER_E_IO;
+
+ if (readbuf == nullptr)
+ return TARGET_XFER_E_IO;
+
+ if (offset > bufsize)
+ return TARGET_XFER_E_IO;
+
+ if (offset + len > bufsize)
+ len = bufsize - offset;
+
+ memcpy (readbuf, buf + offset, len);
+ *xfered_len = len;
+
+ return TARGET_XFER_OK;
+}
+
enum target_xfer_status
windows_nat_target::xfer_partial (enum target_object object,
const char *annex, gdb_byte *readbuf,
return windows_xfer_shared_libraries (this, object, annex, readbuf,
writebuf, offset, len, xfered_len);
+ case TARGET_OBJECT_SIGNAL_INFO:
+ return windows_xfer_siginfo (readbuf, offset, len, xfered_len);
+
default:
if (beneath () == NULL)
{
{
windows_thread_info *th;
- th = thread_rec (ptid.tid (), 0);
+ th = windows_process.thread_rec (ptid, DONT_INVALIDATE_CONTEXT);
if (th == NULL)
return false;
}
ptid_t
-windows_nat_target::get_ada_task_ptid (long lwp, long thread)
+windows_nat_target::get_ada_task_ptid (long lwp, ULONGEST thread)
{
- return ptid_t (inferior_ptid.pid (), 0, lwp);
+ return ptid_t (inferior_ptid.pid (), lwp, 0);
}
/* Implementation of the to_thread_name method. */
const char *
windows_nat_target::thread_name (struct thread_info *thr)
{
- return thread_rec (thr->ptid.tid (), 0)->name;
+ windows_thread_info *th
+ = windows_process.thread_rec (thr->ptid,
+ DONT_INVALIDATE_CONTEXT);
+ return th->thread_name ();
}
+void _initialize_windows_nat ();
void
-_initialize_windows_nat (void)
+_initialize_windows_nat ()
{
x86_dr_low.set_control = cygwin_set_dr7;
x86_dr_low.set_addr = cygwin_set_dr;
add_cmd ("selector", class_info, display_selectors,
_("Display selectors infos."),
&info_w32_cmdlist);
+
+ if (!initialize_loadable ())
+ {
+ /* This will probably fail on Windows 9x/Me. Let the user know
+ that we're missing some functionality. */
+ warning(_("\
+cannot automatically find executable file or library to read symbols.\n\
+Use \"file\" or \"dll\" command to load executable/libraries directly."));
+ }
}
/* Hardware watchpoint support, adapted from go32-nat.c code. */
internal_error (__FILE__, __LINE__,
_("Invalid register %d in cygwin_set_dr.\n"), i);
dr[i] = addr;
- debug_registers_changed = 1;
- debug_registers_used = 1;
+
+ for (auto &th : thread_list)
+ th->debug_registers_changed = true;
}
/* Pass the value VAL to the inferior in the DR7 debug control
cygwin_set_dr7 (unsigned long val)
{
dr[7] = (CORE_ADDR) val;
- debug_registers_changed = 1;
- debug_registers_used = 1;
+
+ for (auto &th : thread_list)
+ th->debug_registers_changed = true;
}
/* Get the value of debug register I from the inferior. */
bool
windows_nat_target::thread_alive (ptid_t ptid)
{
- int tid;
-
- gdb_assert (ptid.tid () != 0);
- tid = ptid.tid ();
+ gdb_assert (ptid.lwp () != 0);
- return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) != WAIT_OBJECT_0;
+ windows_thread_info *th
+ = windows_process.thread_rec (ptid, DONT_INVALIDATE_CONTEXT);
+ return WaitForSingleObject (th->h, 0) != WAIT_OBJECT_0;
}
+void _initialize_check_for_gdb_ini ();
void
-_initialize_check_for_gdb_ini (void)
+_initialize_check_for_gdb_ini ()
{
char *homedir;
if (inhibit_gdbinit)
}
}
}
-
-/* Define dummy functions which always return error for the rare cases where
- these functions could not be found. */
-static BOOL WINAPI
-bad_DebugActiveProcessStop (DWORD w)
-{
- return FALSE;
-}
-static BOOL WINAPI
-bad_DebugBreakProcess (HANDLE w)
-{
- return FALSE;
-}
-static BOOL WINAPI
-bad_DebugSetProcessKillOnExit (BOOL w)
-{
- return FALSE;
-}
-static BOOL WINAPI
-bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z)
-{
- return FALSE;
-}
-
-#ifdef __USEWIDE
-static DWORD WINAPI
-bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z)
-{
- return 0;
-}
-#else
-static DWORD WINAPI
-bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z)
-{
- return 0;
-}
-#endif
-
-static BOOL WINAPI
-bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z)
-{
- return FALSE;
-}
-
-static BOOL WINAPI
-bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y)
-{
- return FALSE;
-}
-
-static BOOL WINAPI
-bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f)
-{
- f->nFont = 0;
- return 1;
-}
-static COORD WINAPI
-bad_GetConsoleFontSize (HANDLE w, DWORD nFont)
-{
- COORD size;
- size.X = 8;
- size.Y = 12;
- return size;
-}
-
-/* Load any functions which may not be available in ancient versions
- of Windows. */
-
-void
-_initialize_loadable (void)
-{
- HMODULE hm = NULL;
-
-#define GPA(m, func) \
- func = (func ## _ftype *) GetProcAddress (m, #func)
-
- hm = LoadLibrary ("kernel32.dll");
- if (hm)
- {
- GPA (hm, DebugActiveProcessStop);
- GPA (hm, DebugBreakProcess);
- GPA (hm, DebugSetProcessKillOnExit);
- GPA (hm, GetConsoleFontSize);
- GPA (hm, DebugActiveProcessStop);
- GPA (hm, GetCurrentConsoleFont);
- }
-
- /* Set variables to dummy versions of these processes if the function
- wasn't found in kernel32.dll. */
- if (!DebugBreakProcess)
- DebugBreakProcess = bad_DebugBreakProcess;
- if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit)
- {
- DebugActiveProcessStop = bad_DebugActiveProcessStop;
- DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit;
- }
- if (!GetConsoleFontSize)
- GetConsoleFontSize = bad_GetConsoleFontSize;
- if (!GetCurrentConsoleFont)
- GetCurrentConsoleFont = bad_GetCurrentConsoleFont;
-
- /* Load optional functions used for retrieving filename information
- associated with the currently debugged process or its dlls. */
- hm = LoadLibrary ("psapi.dll");
- if (hm)
- {
- GPA (hm, EnumProcessModules);
- GPA (hm, GetModuleInformation);
- GetModuleFileNameEx = (GetModuleFileNameEx_ftype *)
- GetProcAddress (hm, GetModuleFileNameEx_name);
- }
-
- if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx)
- {
- /* Set variables to dummy versions of these processes if the function
- wasn't found in psapi.dll. */
- EnumProcessModules = bad_EnumProcessModules;
- GetModuleInformation = bad_GetModuleInformation;
- GetModuleFileNameEx = bad_GetModuleFileNameEx;
- /* This will probably fail on Windows 9x/Me. Let the user know
- that we're missing some functionality. */
- warning(_("\
-cannot automatically find executable file or library to read symbols.\n\
-Use \"file\" or \"dll\" command to load executable/libraries directly."));
- }
-
- hm = LoadLibrary ("advapi32.dll");
- if (hm)
- {
- GPA (hm, OpenProcessToken);
- GPA (hm, LookupPrivilegeValueA);
- GPA (hm, AdjustTokenPrivileges);
- /* Only need to set one of these since if OpenProcessToken fails nothing
- else is needed. */
- if (!OpenProcessToken || !LookupPrivilegeValueA
- || !AdjustTokenPrivileges)
- OpenProcessToken = bad_OpenProcessToken;
- }
-
-#undef GPA
-}
projects / binutils-gdb.git / blobdiff